You Have 500

question 86

Multiple Choice

You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH₃COOH) and 0.20 M sodium acetate (CH₃COONa) . What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution [K_a = 1.8 * 10^-5]

• A) 4.65
• B) 4.71
• C) 4.56
• D) 4.84
• E) 5.07

---

Definitions:

Soil Development

The process by which soil forms from the physical, chemical, and biological weathering of rocks and the accumulation of organic matter over time.

Temperature

A measure of the warmth or coldness of an environment or material, influencing geological processes.

Shearing Zones

Regions of the Earth's crust where rocks are subject to forces causing them to slide past one another, often associated with fault lines.

Different Ages

Refers to the variation in chronological periods or times at which different entities existed or events occurred.